A Christmas tree dog fence, such as Arf Pets Free-Standing Walk-Through Wood Dog & Cat Gate, can help keep your pet away from both the tree and all the breakable ornaments, gifts and even the water that can pose a risk to dogs, agrees Francine Coughlin, CPDT-KA, IAABC, a dog trainer and behavior consultant who founded Bark N Roll in Reading, Massachusetts. She also suggests keeping an unsupervised dog away from the tree by simply closing the whole room off with a baby or pet gate or closing ...